cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A277720 Numbers k > 2 such that lambda(k)^2 divides k-1, where lambda(k) = A002322(k).

Table of values

n a(n)
1 2320690177
2 17069520863233
3 42182344790209
4 65465530560001
5 3432376805760001
6 13322002122777601
7 20388795375960001
8 129009714848870401
9 580007888606160001
10 1096591987029196801
11 3029756968906340401
12 5806765663003468801
13 6213994663149504001
14 6367205158826803201
15 7802569551798000001
16 10319507991273499201

List of values

[2320690177, 17069520863233, 42182344790209, 65465530560001, 3432376805760001, 13322002122777601, 20388795375960001, 129009714848870401, 580007888606160001, 1096591987029196801, 3029756968906340401, 5806765663003468801, 6213994663149504001, 6367205158826803201, 7802569551798000001, 10319507991273499201]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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